Search for exclusive Higgs and Z boson decays to phi gamma and rho gamma with the ATLAS detector


Creative Commons License

Aaboud M., Aad G., Abbott B., Abdinov O., Abeloos B., Abidi S. H., ...Daha Fazla

JOURNAL OF HIGH ENERGY PHYSICS, cilt.2018, sa.7, 2018 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2018 Sayı: 7
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/jhep07(2018)127
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Hadron-Hadron scattering (experiments), Higgs physics, MASS, HIERARCHY, QCD
  • Gazi Üniversitesi Adresli: Evet

Özet

A search for the exclusive decays of the Higgs and Z bosons to a phi or rho meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb(-1) collected at root s = 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95% confidence level were obtained on the branching fractions of the Higgs boson decays to phi gamma and rho gamma of 4.8 x 10(-4) and 8.8 x 10(-4), respectively. The corresponding 95% confidence level upper limits for the Z boson decays are 0.9 x 10(-6) and 25 x 10(-6) for phi gamma and rho gamma, respectively.